The authors wish to retract this article after discovering that the main finding, the effects of cromolyn on hyperoxia-induced airway hyperreactivity, reported in Figure 2 of the article, is not reliable. The authors have repeated the exposure of newborn rats to hyperoxia and found that hyperoxia did not increase methacholine-provoked airway resistance.
E.D.S., S.N.M., W.M.F., and R.L.A. agree to this Retraction. E.N.P. could not be reached to comment on the Retraction.
The authors regret any inconvenience caused to the journal and the research community.